diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index c4784494970e..103dd8edda71 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -67,7 +67,8 @@ EXPORT_SYMBOL(pm_power_off);
 unsigned int acpi_cpei_override;
 unsigned int acpi_cpei_phys_cpuid;
 
-const char *acpi_get_sysname(void)
+const char __init *
+acpi_get_sysname(void)
 {
 #ifdef CONFIG_IA64_GENERIC
 	unsigned long rsdp_phys;